Display device



FIG. 1 is a top plan view of a display device showing my new design;

FIG. 2 is a front elevation view of the display device;

FIG. 3 is a perspective view of the display device; and,

FIG. 4 is a front elevation view of the display device with a flower pot and flowers on top of one of the platforms.

The broken lines in FIG. 4 showing the flower pot and flowers are for illustrative purposes only and form no part of the claimed invention. 

The ornamental design for a display device, as shown and described. 